Principally destined for the manufacturing of low temperatures electric resistances so as heating cables&comma; shunts&comma; resistances for automobile&comma; they have a maximum operating temperature of 752 degrees Fahrenheit&period;They do not therefore intervene in the field of resistances for industrial furnaces&period;

Those are alloys of chemical composition copper &plus; nickel with addition of manganese with a low resistivity &lpar;from 231&period;5 to 23&period;6 Ohm&period; Mm2&sol;ft&rpar;&period;

The most known&comma; CuNi 44 &lpar;also called Constantan&rpar; presents the advantage of a very low temperature coefficient&period;

Their advantages are the following&colon;

Very good resistance to corrosionVery good malleabilityVery good solderability